Calendar-clock.



No. 675,763. Patented 1m 4, 19m.

J. WEJRUSTEK &. C. WlEDEMANN;

CALENDAR cLocK.

(Applicfiion fi1ed Nov. 21, 1899.)

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UNITED J STATES.

PATENT OFFICE.

J OSEF WEJROSTEK, OF BEDHOST, AND CENEK WIEDEMANN, OF VINOHRADY- PRAGUE,AUSTRIAHUNGARY.

CALENDAR-CLOCK.

SPECIFICATION formingpart of Letters Patent No. 675,763, dated June 4,1901.

Application filed November 21, 1899- Serial No.- 7371810. (N model-l Toall whom it may concern.-

Be it known that we, JOSEF WEJROSTEK, residing at Bedhost, Moravia, andOENEK WIEDEMANN, residing at Vinohrady-Prague,

Bohemia, Austria-Hungary, subjects of the Emperor of Austria-Hungary,have invented a new and usefulTimepiece, (for which we applied for apatent in Austria on the 6th day of August, 1899,) of which thefollowing is a to specification.

Our invention relates to improvements in timepiecesgand our invention isapplicable to every kind of watch or clock showing not only the hours,with their subdivisions, but

:5 also the days of the week and names of the months, the dates, andalso the leap-years. We attain these objects by, the mechanismillustrated in the accompanying drawings, in which Figure 1 is a rearview of the mechanism. Fig. 2 shows the wheel adapted to make onecomplete revolution in four years,corresponding with leap-years, andprovided with a cam. Fig. 3 indicates the wheel 3, adapted to turn onceayear aroundits'axis and havinga notchring for all the months which haveless than thirty-one days and with a special notch for the leap-years.Fig. 4 shows the dial-plate.

Fig. 5 is a detail View showing the working of the catch in itsdifferent positions.

Similar numerals, refer to similar parts throughout the several views.

1 is a cam turning once in four years around its axis 2. It is integralwith a wheel 20, which is provided with forty eight teeth.

Mounted on the same spindle or axis 2 is wheel 19, having onehundred andforty-four teeth. A concentric ring 3 is secured to the wheel 19. Thewheel 20," with its cam 1, is

with its ring 3, turns freely on said spindle. In arranging the partsthe wheel 20 is the lowest or next to the dial-plate. 2O isthe wheel 19,and the cam 1 is situated 5 inside the ring 3 on one and the same levelsecured to the spindle 2, while the wheel 19,.

Above wheel 7 and their signification will be explained far= ther on.

It will be noted that the notches 5 6 7 S are all of similar shape,while the notch 4 is of different shapeand extends from edge to edge ofthe ring. In the notch at is arranged a piece 10, mounted upon a pin 9,so as to enable it to turn around this pin. Its outer edge forms acontinuation of the circular outward edge of the disk 3. Toward the cen-6o ter of the wheel it is provided with a-pawl12 and on the other side acavity, into which'a spring 11 is fitted, which is secured at one end tothe disk 3, while it presses at its free end against the pawl 12 andpresses the latter toward the center. The piece 10 cannot be turnedfarther than the pawl 12 will permit, toward which it is pressed by thespring 11.

It will be noted that in the relative position of the different parts asshown in Fig. 1 the pawl occupying its lowest position nearly touchesthe edge 18 of the cam. As soon as this part of the ring reaches theelevated edge 14c of the cam 1 the pawl 12 is lifted up.

15 is a catch on the lever 31, which is pivoted at 16, the said leverhaving also an arm 27. The catch 15 is continually pressed toward thering 3 by a spring 17. At the end of the lever 31 is a spring 30, whichpresses 8o against one of the teeth ofthe wheel 32. This wheel 32 hasthirty-one teeth and is governed by a spring 33. The lever 27 is swungonce a day by the pin 28 from left to right, the pin 28 being secured tothe wheel 29, which is moved by the clockwork in any usual way. Theamplitude of swing of the lever 27 31 in Fig. 1 is just sufficienttomove the wheel 32 one tooth each time; The cock-wheel 29 turning oncea day around its axis will move the wheel 32 one tooth farther,therefore once around its axis in thirty-one days ifthe catch reposes onthe circular periphery of the disk 3. This is really the case throughall the months of the year which have thirty-one days. At the end of allthe other months of the year which have lessthan thirty-one days thecatch 15 must fall deeper, so as to be able to turn the wheel 32 morethan one tooth. In the months which have thirty days only it mo mustturn on the thirtieth day of each such .the periphery of ring 3 whichissituated between the notches 4 and 5 will turn so as to pass under thecatch 15. On the 28th day of February in an ordinary year the notch 4will pass under. the catch 15,-which then falls upon the edge 18* of cam1, which is the most advanced position shown in the diagram Fig.

5. Before the wheel 19 turns so far as to pass the notch the catch isdrawn out ofv it by the pin 28, and the spring will move the wheel 32four teeth farther. During the month of March and nearly the whole ofApril the part of the periphery of the ring3 will be under the catch 15,and this will fall into the notch 5; The pin 28 will draw it out and itwill this time move the wheel 32 two teeth farther. The same will happenon the thirtieth day of each month which has thirty days only, so thatthenotches 6, 7, and 8 will pass under the catch 15 on the thirtieth dayof the consequence will be pushed a little farther from the axis 2.

Thisis calculated so that the space 4 will be partly closed justtwo-thirds of its width, or one three-hundred-and-sixtyfifth part of theperiphery of the ring 1. Then this notch will pass under the catch 15 onthe twenty-ninth day of February each leap-year. This catch 15 will fallinto the part 14 of the cam, and on its way upward the spring 30 willmove the wheel 32 three teeth farther.

The wheel 38 has fourteen teeth. It is turned around its axis 39 by thepin 37 of the wheel 29, and it is moved step by step by means of thespring 41. The wheel 29 being turned by the clockwork once in a day, thewheel 38 will advance one tooth daily and will turn once in two weeksaround its axis. On the dial the spindle 39 carries a disk 40, whichturns in fourteen days once around its own axis. Upon this disk theweek-days are written twice in a radial direction, so that each day mustpass under the opening 51, Fig. 4, to indicate the name of each presentday. In the opposite opening 52' the names of the months will appear;This will be the case each time when the wheel 32 has turned once aroundits own axis. There is a pin 45 secured to wheel 32, and this pin willonce each month swing the hook 43 around its axis 42,and therefore theother end of the same hook will ad- Vance the wheel 40 one tooth. Thiswheel is kept in place by the spring 48. It has twelve teeth, andtherefore will turn on its axis 47 once each year. Spindle 47 carries adisk 49 with inscriptions of the twelve months of the year divided intoequal distances and in ra- February.

dial directions, so as to make them appear beneath the opening 52 uponthe dial, Fig. 4.

Upon the spindle of the wheel 32 is mounted a hand 34, Fig. 4, pointingto the days of the month. Upon the same spindle a'wheel 36 with fortyteeth is mounted, gearing with a wheel 35, and it has two pins 22 and23, which gear with the wheel 20 by the spring 21.

The spindle 24 is fitted with a wheel 24', having twenty-four teeth,which gears with the wheel 19, having one hundred and fortyfour teeth.In the drawings only a portion of the teeth of the wheels 24 and 19 areshown.

The action of the apparatus will be as follows: Wheel 29 being revolvedby the clockwork once in twenty-four hours, it will swing the lever 2731 by means of the pin 28 once each day. If at this moment the catch 15.is not engaged in any of the several notchesof the disk 3, but liesagainst the periphery of said disk 3, as shown in Fig. 1, the pin 28will cause the spring 30 to move the wheel 32 one tooth farther. Thiswill not be the case on the thirtieth day .of any month which hasonly-thirty days, neither at the end of At the end of February the piece1.0 will come near the catch 15, and in the ordinary years the relativeposition of piece 10 and cam 1 will besuch that the elevated part 14will be near and opposite to the pawl 12.

Only in leap-years the part 14 of this cam willbe near the pawl 12 andwill elevate it and turn the piece lO around its pin 9, so as to makethe notch 4 narrower and to push the end 10 one day backward in thedirection of the arrow. Thus in the ordinary years the end of the part10 will pass under andv clear the catch 15 on the twenty-eighth ofFebruary, and in a leap-year this will happen on the twenty-ninth ofFebruary. In the first instance the catch 15'will drop into the notch 4,and owing to the depth of said notch said catch will assume its deepestposition, so

that when said catch is drawn out of said notch the spring 30 will causethe wheel 32 IIO toadvance a distance of four teeth, thus advancing thetime four days, while in the case of a leap-year the catch 15 will fallin the notch 4 on the twenty-ninth of February and only so deep thatwhen drawn out of it its spring 30 will advance the wheel 32 threeteeth. It will be understood that the wheel 29 works continually andthat therefore the catch 15 is being drawn out of the notches 4 to 8 indue time by the pin 28 of this wheel, which also moves the other partsof the mechanism con- I tinually forward, so that the week-days arepushed into their places beneath the opening 51 at the end of each daypassed by the pin 37 of the wheel 38 and its disk 40, which on its faceshows the names of the week-days, appearing through the opening 51. Atthe end of each month the pin 45 of the wheel; 32 will, by theintermediate action of the: piece 43 44, advance the wheel 46 one tooth,and the disk 49, which on its front face bears the inscriptions of themonths, will therefore.

show the present month through the opening 52 of the dial. At the end ofthe spindle 2 and in front of the dial is a small hand turn ing with thespindle 2 once around its axis in four years. At the beginning of eachyear it points to the numbers 365, or once in four years to the number366, when the leapyear begins. During the year it moves slowly towardthe next quarter of its small dial, and it will be understood that itbelongs to the number which it has passed on the first ofJanuaryofthatyear. Thissimplemechanism can be applied to every watch orclockwork, so as to give five almanac indications.

We are aware that prior to our invention of this timepiece differentmechanisms have been invented for the continuous indications of calendartime. We therefore do not claim as our invention such a combinationbroadly; but

What we claim as our invention, and desire to secure by Letters Patent,is-

1. The combination with clockwork mechanism of the toothed wheel 19, thering 3 on said wheel and having notches 4, 5, 6, 7, and 8, shaped asdescribed, the toothed wheel 20, the cam 1, having elevated portion 14,a spindle upon which the wheel 19 is loosely mounted and upon which thewheel 20 and cam are fixedly mounted, and a pivoted piece 10 arranged asdescribed and acted upon by elevated portion 14, as specified, a pivotedlever having an arm adapted to fall into notches of the ring, means foractuating the said lever once each day from the clockwork mechanism, thewheel 32 having thirty-one teeth, means intermediate the said pivotedlever and wheel 32 whereby the latter is actuated step by step, thepivoted lever carrying between the wheel 32 and wheel 19, the toothedwheel 38 having fourteen teeth, the wheel 29 carrying a pin 37 adaptedto engage the teeth on wheel 38, and means for actuating the wheel 29from the clockwork mechanism.

2. The combination with clockwork mechanism of the toothed wheel 19, thering 3 on said wheel and having notches 4, 5, 6, 7, and 8, shaped asdescribed, the toothed wheel 20, the cam 1, having elevated portion 14,a spindle upon which the wheel 19 is loosely mounted and upon which thewheel 20 and cam are fixedly mounted, and a pivoted piece 10 arranged asdescribed and acted upon by elevated portion 14, as specified, a pivotedlever having an arm adapted to fall into notches of the ring, means foractuating the said lever once each day from the. clockwork mechanism,the wheel having thirty-one teeth, means intermediate the said pivotedlever and wheel 2 whereby the latter is actuated step by step, thepivoted lever carrying between the wheel 32 and wheel 19, the toothedwheel 38, having fourteen teeth, the wheel 29 carrying a pin 37 adaptedto engage the teeth on wheel 38, and means for actuating the wheel 29from the clockwork mechanism, a toothed wheel 46 having twelve teeth, apawl adapted to engage at one end the teeth of wheel 46, and a wheel 32adapted to engage the other end of the pawl.

3. The combination with clockwork mechanism of the toothed wheel 19, thering 3 on said wheel and having notches 4, 5, 6, 7, and 8 shaped asdescribed, a toothed wheel 20 and cam 1, having elevated portion 14, anda spindle upon which the wheel 19 is loosely mounted, and upon which thewheel 20 and cam are fixedly mounted, a pivoted piece 10 arranged asdescribed and acted upon by the elevated portion 14, a pivoted leverhaving an arm adapted to fall into the notches of the ring, means foractuating the said lever once a day from the clockwork mechanism, thewheel 32 having thirty-one teeth, means intermediate the said pivotedlever and wheel 32 whereby the latter is actuated step by step by thepivoted lever, the toothed wheel 38 having fourteen teeth, as described,the toothed wheel 29 carrying a pin 3'7 adapted to engage the toothedwheel 38, means for actuating the wheel 29 from the clockwork mechanism,the toothed wheel 46 having twelve teeth, a pawl adapted to engage atone end the' toothed wheel 46, and a wheel 32 adapted to engage theother end of the pawl, the wheel 36, spindle, and wheel 32 having fortyteeth, and wheel 35 engaged by wheel 36 and having eighty teeth, thepins 22 and 23 on the wheel 35 engaging wheel 20, a wheel 24 havingtwenty-four teeth mounted on the spindle of wheel 35 and gearing withthe wheel 19.

In witness whereof we have hereunto set our hands in presence of twowitnesses.

JOSEF WEJROSTEK. CENEK VVIEDEMANN.

Witnesses:

ARTHUR J. NOVAK, ADOLPH FISCHER.

